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19513+2309
CHE 165

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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

19513+2309 CHE 165

19^h 50^m 59.19^s +23° 08' 08.4" P.A. 155.00 sep 12.1 mag 12.30,13.80

Coord 2000	19513+2309		Discov num	CHE 165		Comp			Coord arcsec 2000	19 50 59.19 +23 08 08.4
Date first	1907		Date last	2015		Obs	10
Pa first	155		Pa last	155		P.A. Now (θ)	155°
Sep first	12.1		Sep last	12.1		Sep. Now (ρ)	12.1"
Mag pri	12.30		Mag sec	13.80		delta mag (ΔM)	1.5		Spectral class
Pri motion ra	+002		Sec motion ra	+008
Pri motion dec	-004		Sec motion dec	-020
Notes	N (See Notes)

rPM=0.793

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	155		Precise sep	12.07		Constellation	Vulpecula		Tycho2	2140-02825-1
Gaia DR2	1828220144601400192

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19513+2309	CHE 165		1907	1	25	12.1	11.40	12.60			195117.22+230914.1
19513+2309	CHE 165		2008	3	155	12.1	12.30	13.80		N	195059.19+230808.4
19513+2309	CHE 165		2010	5	151	12.9	12.30	13.80		N	195059.19+230808.4
19513+2309	CHE 165		2015	6	155	12.1	12.30	13.80		N	195059.19+230808.4

If you need more information about this double, apply for a data request form to the WDS.